/*
 * (c) Copyright 2006, 2007, 2008 Hewlett-Packard Development Company, LP
 * All rights reserved.
 * [See end of file]
 */

package arq.examples;

import java.io.StringReader;

import com.hp.hpl.jena.query.ARQ;
import com.hp.hpl.jena.query.larq.IndexBuilderExt;
import com.hp.hpl.jena.query.larq.IndexLARQ;
import com.hp.hpl.jena.rdf.model.Literal;
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.rdf.model.Resource;
import com.hp.hpl.jena.rdf.model.ResourceFactory;
import com.hp.hpl.jena.sparql.util.StringUtils;
import com.hp.hpl.jena.sparql.util.Utils;

/**
 * Example code to index subjects by some external content. Pattern 3.
 * 
 * @author Andy Seaborne
 */

public class ExLucene5 {

	public static void main(String[] a) throws Exception {
		System.out.println("ARQ Example: "
				+ Utils.classShortName(ExLucene5.class));
		System.out.println("ARQ: " + ARQ.VERSION);
		System.out.println();

		Model model = ModelFactory.createDefaultModel();

		IndexLARQ index = buildIndexExternalContent(model);

		// Search for string
		String searchString = "+document";

		// This time, find documents with a matching DC title.
		String queryString = StringUtils.join("\n", new String[] {
				"PREFIX pf:     <http://jena.hpl.hp.com/ARQ/property#>",
				"SELECT ?doc {",
				"    ?doc pf:textMatch '" + searchString + "'.", "}" });

		// Two of three docuemnts should match.
		ExLucene1.performQuery(model, index, queryString);
		index.close();
	}

	static IndexLARQ buildIndexExternalContent(Model model) {
		// ---- Create index builder
		IndexBuilderExt larqBuilder = new IndexBuilderExt();

		Resource r1 = ResourceFactory.createResource("http://example/r1");
		Resource r2 = ResourceFactory.createResource("http://example/r2");
		Resource r3 = ResourceFactory.createResource("http://example/r3");
		Resource r4 = ResourceFactory.createResource("http://example/r4");
		Literal lit1 = ResourceFactory.createPlainLiteral("doc");

		// ---- Index based on some external content

		larqBuilder.index(r1, new StringReader("document")); // Just to show
																// a
																// Stringreader
																// is possible
		larqBuilder.index(r2, "document");
		larqBuilder.index(r3, "slideshow");
		larqBuilder.index(r4, "codebase");
		larqBuilder.index(lit1, "document");

		// Note that the model is untouched - the index exists outside of any
		// model statements.
		// The application is responsible for keeping
		// ----

		larqBuilder.closeWriter();
		IndexLARQ index = larqBuilder.getIndex();

		// NodeIterator iter = index.searchModelByIndex(model, "document") ;
		// for ( ; iter.hasNext() ; )
		// System.out.println("Found:
		// "+FmtUtils.stringForRDFNode((RDFNode)iter.next())) ;

		return index;
	}

}

/*
 * (c) Copyright 2006, 2007, 2008 Hewlett-Packard Development Company, LP All
 * rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer. 2. Redistributions in
 * binary form must reproduce the above copyright notice, this list of
 * conditions and the following disclaimer in the documentation and/or other
 * materials provided with the distribution. 3. The name of the author may not
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */